Musculocutaneousnerven
The musculocutaneous nerve, known in Swedish as Musculocutaneousnerven, is a branch of the brachial plexus. It carries nerve fibers from the C5 to C7 nerve roots and provides motor innervation to the anterior compartment of the arm, as well as sensory innervation to the lateral forearm via its terminal branch, the lateral antebrachial cutaneous nerve.
Course and branches: The nerve typically pierces the coracobrachialis muscle, then descends between the biceps brachii
Function: Functionally, the musculocutaneous nerve enables elbow flexion and forearm supination, with particularly strong assistance from
Clinical significance: Injury or compression can result from upper-arm trauma, humeral fractures, axillary region compression, or
Variations: Anatomical variations exist; in some individuals the lateral antebrachial cutaneous nerve may arise from the